'I am so disciplined': Kim Kardashian denies 'lies'

Kim Kardashian vehemently denied the 'Photoshop lies' that she altered pictures of herself to look slimmer.

The curvy mom stepped out confidently Friday, proudly showing off her post-pregnancy body in Los Angeles with hip-hugging white jeans and flattering top.

PHOTOS: KIM KARDASHIAN'S STYLE MAKEOVER

The reality TV star was spotted out shopping just hours after taking to Twitter to attack those who claimed the 33-year-old had been altering pictures of herself before publishing them on Instagram.

'It sucks when people make up surgery or Photoshop lies,' she tweeted, 'when I am so disciplined & work so hard! Just trying to motivate others & show anyone struggling with weight they can totally achieve whatever they want if they are dedicated!'

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Preach! LOL thank you! It sucks when people make up surgery or photoshop lies when I am so disciplined ... http://t.co/1ZItGWgmUS

- Kim Kardashian (@KimKardashian) January 10, 2014

Kardashian gave birth to her daughter North in June last year.

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Since then, Kardashian has hit the gym and said she has trained hard to get her famous figure back.

On Friday, she flaunted her figure, showing off her thin legs, slim waist and well-known derriere in a cream top and slim fitting jeans with a rip at the knee.

Kardashian was also wearing her impressive 15-carat emerald-cut engagement ring from fiancé Kanye West.